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Algebra
Can someone please help solve this? Solve by using addition or substitution or addition. 10x+2y=7 y=5x+3 the answer my got was x=11/10 y=2 My teacher said that was wrong. Never mind this post I found out how to solve it. Try substitution. 
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Solve the system by addition or substitution. 
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Solve each of the following systems by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x+2y=7 y==5x+3 
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Solve the following system by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x+2y=7 y=5x+3 
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Solve this system 10x+2y=7,y=5x+3 by addition or substitution. If a unique solution does not exist state if the system is dependent or inconsistent. 
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Solve the system by addition or substitution.3x + 6y = 0 , x=2/3 
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i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y  1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations … 
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I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. 3x+yz=4 6x2y+2z=8 … 
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I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. 3x+yz=4 6x2y+2z=8 … 
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1.) Solve the system by triangularizing the augmented matrix and using back substitution. xy+z=1 xy4z=7 4x+y+z=6 2.) Perform the indicated row operation, then write the new matrix. 4 4  4 9 6  5 2R1+ R2 > R2 3.) Solve …